Invention Grant
US08494006B2 Method and apparatus for transmitting downlink reference signal in wireless communication system supporting multiple antennas
有权
用于在支持多个天线的无线通信系统中传输下行链路参考信号的方法和装置
- Patent Title: Method and apparatus for transmitting downlink reference signal in wireless communication system supporting multiple antennas
- Patent Title (中): 用于在支持多个天线的无线通信系统中传输下行链路参考信号的方法和装置
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Application No.: US13006879Application Date: 2011-01-14
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Publication No.: US08494006B2Publication Date: 2013-07-23
- Inventor: Dae Won Lee , Hak Seong Kim , Byoung Hoon Kim , Ki Jun Kim , Eun Sun Kim
- Applicant: Dae Won Lee , Hak Seong Kim , Byoung Hoon Kim , Ki Jun Kim , Eun Sun Kim
- Applicant Address: KR Seoul
- Assignee: LG Electronics Inc.
- Current Assignee: LG Electronics Inc.
- Current Assignee Address: KR Seoul
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: KR10-2010-0104630 20101026
- Main IPC: H04J1/00
- IPC: H04J1/00 ; H04J11/00 ; H04J4/00 ; H04B7/005 ; H04B1/44 ; H04W4/00
Abstract:
A method and apparatus for transmitting a downlink reference signal in a wireless communication system supporting multiple antennas is disclosed. A method for transmitting Channel State Information-Reference Signals (CSI-RSs) for eight or less antenna ports includes selecting one of a plurality of CSI-RS Resource Element (RE) groups defined on a data region of a downlink subframe and mapping CSI-RSs for the eight or less antenna ports to the selected CSI-RS RE group, and transmitting the downlink subframe in which the CSI-RSs for the eight or less antenna ports are mapped. The plurality of CSI-RS RE groups is defined such that a transmission diversity RE pair for data transmitted on the downlink subframe is not broken.
Public/Granted literature
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